DT-4500 Series C- and Ku-Band Down Converters
MN/DT4500.IOM
Front and Rear Panel Connectors
Revision 2
4–13
Table 4-1. ‘Ethernet’ M&C Interface Connector Pinout
Pin #
Description
Direction
1
Tx+
Out
2
Tx-
Out
3
Rx+
In
4
N/A
--
5
N/A
--
6
Rx-
In
Item 7 – ‘J1 | COM1’ Serial Management Utility Connector
Use this D-Sub 9-pin female (DB-9F) EIA-232/EIA-485 connector for Serial
Interface operation. The mating connector is a DB-9M connector. See
for the EIA-485 2-Wire pinout specification; see
for the EIA-485 4-Wire
for the EIA-232C pinout.
Table 4-2. ‘J1 | COM1’ 2-Wire
EIA-485 Pinout
Table 4-3. ‘J1 | COM1’ 4-Wire
EIA-485 Pinout
Pin #
Description
Pin # Description
1
GND; Ground
1
GND; Ground
2
2
3
3
4
+Rx/Tx; Signal
4
+Tx; Signal
5
-Rx/Tx; Signal Complement
5
-Tx; Signal Complement
6
6
7
7
8
+Rx/Tx; Signal
8
+Rx; Signal
9
-Rx/Tx; Signal Complement
9
-Rx; Signal Complement
Table 4-4. ‘J1 | COM1’ EIA-232C Pinout
Pin #
Description
1
2
TD; Transmit Data
3
RD; Receive Data
4
5
GND; Ground
6
7
8
9
